BACHARACH MGS-402 Gas Detection Controller

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BACHARACH MGS-402 Gas Detection Controller Fixed Gas Leak Detector BACHARACH MGS-402 Gas Detection Controller Fixed Gas Leak Detector BACHARACH MGS-402 Gas Detection Controller Fixed Gas Leak Detector
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2-Channel Controller for Refrigerant, Toxic and Combustible Gas Detection
  • Centralized power and alarming for up to 2 connected MGS-410 gas detectors
  • Modbus RTU Master / Slave provides seamless integration from connected
    gas detectors to third-party BMS / BAS
  • Audible and visual alarms enable compliance with ASHRAE 15 / EN 378 / CSA-B52 –
    no additional hardware required.

Bacharach’s MGS-402 Gas Detection Controller centralizes the status of up to two MGS-410 Gas Detectors, provides a complete package for your safety compliance application. On the front panel of the MGS-402 a bank of LEDs corresponds to each connected gas detector; showing power, alarm status and fault indicators. The MGS-402 can provide the power requirements for to up to two gas detectors, which can be daisy-chained with Modbus communication to each gas detector; simplifying and reducing the cost of installation.

Combining the MGS-402 Gas Detection Controller with Bacharach’s MGS-410 Gas Detector provides a complete, single source gas detection system with an easy means of achieving compliance with refrigeration safety standards such as ASHRAE 15, EN 378 and CSA-B52.

Technical Specifications

Enclosure Rating IP66
Operating Temperature -40 - 113°F (-40 - 50°C)
Power 100 - 240 VAC, 50/60 Hz, 20W (max); 24 VDC
Size (W×H×D) Approx.  6.5 × 6.5 × 3.4'' (165 × 165 × 87mm)
Weight Approx. 1 lb, 11.07 oz (758 g)
Cable Entries 2 × M20 / 1/2″ Conduit (Power), 6 × M16 Cable Glands (Communications)
Approvals CE, UL / CSA / IEC EN 61010-1


Product Details

User Interface Front Panel Push Buttons; DIP Switches
Configurable Relays 1 × Low Alarm, 1 × High Alarm, 1 × Fault (240 VAC @ 10A)
Analog Output 2 × Configurable 4-20mA, 1-5, 2-10VDC
Alarm Silence 2 × Front Panel Push Buttons, 1 × Auxiliary Input
Serial Ports 1 × RS485 Modbus RTU Slave for BMS / BAS, 1 × RS485 Modbus RTU Master for Gas Detectors

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